Messages in this thread | | | Date | Wed, 5 Dec 2001 04:49:49 -0500 | From | Jakub Jelinek <> | Subject | Re: Fwd: binutils in debian unstable is broken. |
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On Wed, Dec 05, 2001 at 08:43:39AM +0000, Alan Cox wrote: > > The problem appears to be that the linker is now actually doing what > > we asked it to do, so the `remove_foo' entry in that table now points > > at a function which isn't going to be linked into the kernel. Oh dear. > > The ideal it seems would be for binutils to support passing a stub function > to use in such cases. That would keep the kernel stuff working nicely and > allow us to do panic("__exit code called"); if anyone actually did manage > to call one.
In binutils? This sounds more like kernel should do it... If all .text.exit functions were not static, it would be pretty easy to do, but I guess they are usually static. In that case, I think it would take about 1 day hacking an libelf program, which would rewrite all object files which are going to be linked into vmlinux, which would add a new SHN_UND symbol to each .symtab/.strtab (say __devexit_called) and change all relocs against symbols in .text.exit sections to this symbol instead. Maybe even it would take even less time, it is not that hard.
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